Fringe making machine



July 42, 193.2. G F. MCDOUGALL 1,868,711

FRINGE MAKING MACHINE y -w Filed Nov. 4, `1929 2 Sheets-Sheet 1 f; w @L S T Wg /n ven 20/7 GURGE E MDOUGHLL,

July-26, 1932.

G. F. MCDOUGALL FRINGE MAKING MACHINE 2 Sheets-Sheet 2 Filed Nov. 4, 1929 G50/ME E Mmm/GALL. 5

Patented July 26, 1932 UNITEDv STATES PATENT i oi-"iieviciz"v GEORGE F. MCDO'UG-ALI, OF PORTLAND, OREGON, ASSIGNOR, BY' DIRECT kAND MEISN'I]A ASSIGNMENTS, TO OREGON TEXTILE MACHINES, INC., A CORPORATION OF OREGONf"v -FRINGE kMAKING MACHINE .Application led November My invention relates to the textile art and Y that portion of it having to do with automobile robes, steamer rugs and other pieces of woolen materials having fringes at the ends thereof. y

Heretofoie so far as this inventor is able to learn these fringes have been made in the following manner, to-wit: The articles requiring fringes come from the looms having a considerable number of the robes or other articles woven continuously in one piece, eX-

cept that where itis desired tojsubsequently divide the articles the shuttles arestopped and nolonger throw any woof or cross threads and a varying amount of warp threads are run through sufficient to make two fringes, usually about eight inches for a fringe that will be slightly under four inches long on completion.

In the present state of the art the fringes l out.

`The drawings in nine views sliowingthe machine in partial assembly, details of dier-4 ent parts and a figure illustrating the work which the machine accomplishes, accompany `and are made a part` ofthese specifications with reference yletters on the drawings to tie them into the teXt. The drawingsare partly diagrammatic as will be hereinafter pointed out and one of them, Fig. VII, is drawn to yalarger scale Athan the other views for the purpose of more clearly showing the construction; however, dimensions are not a material Vfeature of this invention.

Fig; I is a side elevation partly--sectioned. r

of the machine; Fig. II is a sectional .view of Fig. I onthe line II-II, Fig. I, with some non-essential parts omitted; Fig. III is a view of a robe used to illustrate the purpose of 21,1929.v serial No. 4o`4,59`s. ,d

the machine?. Fig-VIV isan enlarged view "i: of a single twister/element of which a con-k siderable number appear in the machine; and Vpis an Orthographie projection ofFig. I to more clearly illustrate its character.

Fig. VIis a plan view of a 'part of the machine taken onthe line VI-VI of Fig. II and Fig. VII is an'enlarged view of a portion of Fig. II drawn to an increased scale to more clearly indicate the relation of the parts..

Fig. VIII is a view of the needle brackethere-` inafter describedin detail and'containing ay needle,-also thefsubject of further description,.andv illustrates in a diagrammatic way means for keeping the needle in'alignment with the parts with which it cooperates Fig;

IX is a section on the line IX-IXat F i-g. VIII and illustrates the means for needle support.-

In ordery to understand the operation and.

follow the construction offthis machine, I

will'y first describe its function. Referring to Fig.` III, numeral l represents a view of a ,Y

robe as it comes from the loom ,with a portion of the woofy threads, 2,. omitted. And the warp threads', l, have no `cross threads fora distance of several inches, usually about eight inches, when the woof threads, 2, are started again` and the weaving progresses for the length of a robe, when anothery such omission takes place defining the length of a com? pleted robe including the fringes. To make the fringes, an approximately equal number of the warp. threads, 1, are gathered into a bundle and given a desiredv number of turnsk for twists, which is clearly shown inFig; VI, reference numeral 1B, where it will also be observed that the vselected bundle of warp 'nsy threads being twistedat the center, the twist will lbe in opposite-directions von each side of the center.V n

A roll of robefshavingfthe unwoven por-v tions indicated` at numeral 1 'inFig--y III is passed between the'receivingV rollers 3 and 3a which are diagrammatically shown in Fig.y I

as supported by the stands, 3?),the center line of the robes being indicatedby thebijoken line, 4, and passed throughy the machine ,and f thence between rollers 5 and 5a diagrammaticallyvshown rkin Fig. I as supported bythe stand 5?). Means for the proper operation of these rollers will be provided but are not shown in the drawings. Then a portion of the robe as illustrated by numeral 1 is centrally over the point marked 1A in Fig. the gathering comb, 6, is depressed by a preferred means diagrammatically illustrated as the lever, 7, having a fulcrum and a connection with the gathering comb at 9, when the teeth of the gathering comb, 6a, will divide the warp threads, 1, into approximately even divisions or bundles as shown at 1a in Fig. III and these bundles will be crowded up into the throat of the teeth, Ga, the precise point being indicated by numeral 6b in Fig. H and the robe being under some tension between the rollers 3 and 3a and 5 and 5a, this gathering of the warp threads will be substantially completed before any considerable depression of the center line of the robe as indicated by numeral at takes place. i continued depression of the gathering comb, 6, will spring the gathered strands and the robe in a downward direction toward the receiving comb, 10, the teeth of which, it will be noted, form a shield, support and bearings for a twister element indicated as a whole by the numeral 11, the twisting pin of which, 11e, points toward the descending gathered strands.

The twister-element, 11, shown in two views as Fig. IV and Fig. V, is a quill, the hubs of which are journals and it has a gear, 11.7), between the hubs. The particular feature of the twister-element is the slot, 11d, which intercepts both the body of the quill and the gear for the full length of the element and comprises a pocket or receptacle for sidewise entry of a gathered bundle of threads to be twisted into a fringe. It contains a positive means for engaging the bundle of threads, in this case the twisting pin, llc, which is a pointed pin projecting across the axis of the quill toward the open side of the slot 11d, within the slot 11d, but not beyond the bounding circumference line of the hubs. T he circular pitch of the gear, 11?), should be such that only one tooth thereof will be cut out in forming the slotand that without cutting away any of the roots of the next adjoining teeth. This element can be made with only one journal and with the gear at one end of the quill if desired; though it is inferior.

rlhe function of the twister-element is to receive the bundle of threads by sidewise entry, both ends of the threads being held in the weave, permit them to be engaged by the engaging device and twistec as the twister'- element is revolved by appropriate means. It will be essential that all the twister-elements employed shall be timed so that they may be stopped with their respective slots in registration with the spaces between the teeth of the receiving comb 10, in order to smoothly accept the bundle of threads to be twisted and they must likewise register on the completion of the twist that the twisted bundles may be discharged after a twist holding thread has been passed through them.

Therefore, I have used the timing gear shown which provides that all the gears will be in mesh with a. driving means at all times despite the fact that a tooth is removed from each gear, 11b.

As the gathered strands are forced between the points of the receiving comb, 10, into the twister-element 11, they are penet ated at their approximate center by the twisting pin, 110. Disposed between the gathering comb, G, and the receiving comb, 10, is the dieblocl, 12, and 12a, made in two pieces and having transverse grooves, 12C, and a longitudinal groove, 12d, the grooves in 12 and 12a being designed to register when they are brought together by t-he depression of the gathering comb, 6, to which 12 is securely attached so that when they are thus brought together as shown in Fig. I the respective longitudinal grooves, 120 and 12d, become round holes; the grooves 12e when thus brought together wil form a hole having a slightly larger radius than the throat, Gb, in the gathering ceiub, G, and the throat of the twister element, 11, in order that the gathered strands shown at 1B may twist therein freely and substantially without friction.

It is now desired that the twister-element, 11, be given a desired number of complete revolutions depending upon the degree of twist required in the completed fringes. The slotted gear, 11b, of each twister-element, 11, is meshed with an adjacent twister-element on both sides except of course the one at each end of the assembly: and it is obvious that in making even a partial revolution the slots will come together and they will no longer turn; this diiiiculty is overcome by taking the drive from the pinions, 15, which are shown with their axes at an angle from the vertical center line of the twister-elements 11, and they are so disposed that having two adjacent twister-elements, 11, supplied with driving pinions, 15, at equal and opposite angles from their vertical center lines, one twister-element may be omitted from having a separate drive and be driven by adjacent twister-elements. rlhesc pinions, l5, are mounted on shafts, 16, provided with bearings at 17 and another bearing that is not shown and are each given appropriate motion by the beveled gear pairs, 18, one element of which is mounted upon the shaft, 19, upon which also is mounted the pinion, 20, cooperating with sector gear, 21. Sector gear, 21, is attached. to the lever, 22, which has a fulcrum at 23 and it is obvious that moving the lever, 22, in a direction indicated by the arrow, 24e, will cause a revolving motion through the gear train and shafts to be imparted to the twisterelements, 11, and that they will twist the impaled strandsin the manner. indicated at 1B, Fig. VI. v y

The twist having been completed by an exactly even number of turnsof the twisterelement, 11, the twisting pin, llc, will point in the same direction as before the twist started. The needle, 25, which is preferably made with a separate point, 26, having a combof the character described, :adapted ton `1 receive segregatedbundles of threads from a;` 75 gathering device withy a twistereelement in springeye at the point, 26.7), is supported by the bracket, 27 and movable transversely of the machine through the longitudinal groove,

12d, now become a round hole by bringing" together of the two halves of the die-block, 12 and 12a; and as the needle is moved through the said groove, 12d, it will intercept and pass through a twisted strand at each of the transverse grooves, 120.

in Fig. III, the bight of a yarn, 28, or suitable thread will be snapped into the eye of the needle, 26?), and the needle will be withdrawn to its original position and thuspull a double strand of the yarn, 28, through the twisted twisted in opposite directions from the center will be prevented from untwisting by the inserted yarn, 28 the rollers, 3 and 3a, 5 and 5c, Y

will then be caused to function by appropri- `ate means; the cycle of operations previously described repeated at the next adjacent space where it is desired to construct a fringe between two robes.

A lifting bar, 32, is provided attached to` the gathering comb, 6, to lift the twisted strands out of the receiving comb, l0, should they show any tendency to stick.

Numerous mechanical parts which in the drawings bear no reference numerals and are not mentioned in the specification will be noted. And the reason for their omission is that their purpose is so obvious that anyone capable of understanding the drawings and specification can perceive it instantly and in the interest of clarity of the drawings and to eliminate surplusage in the written specifica-- tion they are'not mentioned.

I do not bind myself exactly to the construction shown and reserve the right to vary details of construction, for example the machine is shown to be horizontal when this is not necessary for its successful operation and the drawings therefor are intended to show the operable relation lof my new elements to other elements whether new or old for the new result as described and specified.

Having thus fully described and illustrated my invention, so that a competent designer could construct and direct the operabftion of'one, what Iy claim as newand desire t0 secure by Letters Patent, is:

2.4 In a fringe making'machinma receiving the throat of each receiving comb tooth;

3;A In a fringe making machine, a die-block of the character described having transversaY` Lslots'for strands to be twisted and; a needle80 f slot at rightangles thereto in combination -witha pli'ir'ality of twister-elements. r Having passed through all of the twisted strands between two robes as indicated at H f e. :In a fringe making machine, a two piece dife-block having parallel passageways tout',l hold strands to be twisted and a transverse" f "needle-way intercepting each transverse pasjy sage rand a; co-operating needle whose functi'on' is tol pass a. thread through twisted strands and havinga twister-element in endpassageway. c

" i 5'. E In a fringe making machine, the' combination4 cfa gathering comb 1 anda 'receiving comb' to 1dividewarp threads into approxi-,- mately even bundles inl combinationwithV95 twister elements ladaptedto receive vsaidgbunidles. 6.' 'In afring'e makingmachine, the combi- -Wis -v'egsvtlltion with each Parallel strand"`90 nation of a `gathering comb, a. receivingczomb, o `-of the' character described, and a plurality of 1 o gear drivenvtwister element-sito twistfeach y strand uniform-ly." c

'fi-1,7', fringel making machine, the com bination ofk a'k plurality of :twister-elements. haiung twisting pins of the character" def scribed and slotted gears partially lsurround- "iugsafid twister-'elements and a timing gear drive y"for said twister-'elements tol produce a constant inmesh condition for each twister-.7. element. a no 8. In afringe making machine, the combination ofva gathering means, a receiving means and twister-elements of the character described, for gathering warp threads intor` approximately equal bundles, anda gear drive for said twister-elements to cause them to execute synchronously a desired number of complete revolutions.

9. ln a fringe making machine, the com-q F .bination of a gathering comb and a receiving comb adapted to gather warp threads into approximately equal bundles and deliver them to twister elements, a plurality of 1 twister-elements to receive said bundles,`v means for operating said twister-elements c to twist said bundles, means comprising a die-block of the character described to hold the said twisted bundles in alignment and a needle adapted to pass a restraining thread through said twisted bundles to prevent their untwisting.

10. In a fringe making machine, gathering comb means of the character described, receiving comb means having twister-elements in position in the throat of each space between teeth adapted to receive strands gathered by the first named means and die-block means adjacent the first two named means for holding gathered strands in the same plane for the purpose specified.

11. In a fringe making machine, a gathering means, al receiving means for strands to be twisted and a plurality of twisting elements in the same plane consisting of slotted quill members having bearings and driving means, the slots of said quill members having twisting pins projecting across the axes of said quill members and adapted to engage contained strands.

12. In a fringe making machine, a gathering means, a receiving means for strands to be twisted and a plurality of twister-elements within said receiving means, bearings for said twister-elements, driving means for said twister-elements and means incorporated with said twister-elements for positively engaging contained strands to impart to the said strands the movement of the twisterelements.

13. Ina fringe making machine, a strand gathering means, a (3o-operating strand receiving means, twister-elements incorporated with the last named means and means for holding twisted strands in alignment, with guideways for strand penetrating means for inserting a twist restraining yarn.

14. In a fringe making machine, the combination of gathering means, twister-elements, operating mechanism for said twisterelements, die-block means for aligning the twisted produce and needle means for penetrating twisted strands of said product.

GEORGE F. MCDOUGALL. 

